论文标题
偏光型超流体上的角依赖性的Andreev反射
Angular-dependent Andreev reflection on a polaritonic superfluid
论文作者
论文摘要
我们从分析地研究了正常散发界面上安里森反射的类似物。极化的超流体区域是通过准共振光学泵送来实现的。相互作用的极性子用驱动的触发性毛线杆菌方程来描述。我们发现反射和透射颗粒的角度和振幅的分析公式。有极限角度和能量，在此之上，无法再观察到Andreev反射/传输，而Andreev Wave成为表面模式，将其定位在界面上。这些特性是通过在模拟中以数值求解的近代实验条件中的模拟中确认的。
We study analytically an analog of the Andreev reflection at a normal-superfluid interface. The polariton gapped superfluid region is achieved by quasi-resonant optical pumping. The interacting polaritons are described with the driven-dissipative Gross-Pitaevskii equation. We find analytical formulas for the angles and amplitudes of the reflected and transmitted particles. There are limit angles and energies, above which Andreev reflection/transmission cannot be observed anymore and where the Andreev wave becomes a surface mode, exponentially localized on the interface. These properties are confirmed by solving numerically the Gross-Pitaevskii equation in simulations reproducing realistic experimental conditions.
